Find the probability that a randomly selected adult has an IQ between 90 and 110 (referred to
Question:
Find the probability that a randomly selected adult has an IQ between 90 and 110 (referred to as the normal range).
Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test).
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Step 1 See Figure which shows the shaded region representing IQ scores between 90 and 11...View the full answer
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